<p>Time-multiplexed stereoscopic systems, which present the stereoscopic image by alternating right- and left-eye views of a scene on a CRT, are considered. The current technology for stereoscopic computer graphics is introduced, and an overview of factors important to the proper construction and display of computer images in a time-multiplexed environment is provided. The discussion covers the computation of stereoscopic views, stereoscopic display algorithms, horizontal parallax and factors affecting image quality.</p>